Your thoughts on this product (1 Viewer)

[Buckru]

Would this be a viable product to help reduce temperatures under the hood? I also thought about wrapping the tuna can and a pliable shield for the black hose from the tuna can to the engine ( I dont know the correct term for it). This would seem to be a better alternative than venting the hood.

http://designengineering.com/products.asp?m=sp&pid=44

So wadda ya think?

Buck

 

[Josh83]

I have heard that if your engine area gets wet(or muddy) that that stuff holds the moisture in and causes rust.

 

[miked]

just last night i was considering putting some of this stuff on my motorcycle exhaust. i plan to use flex pipe from an auto parts store to make a custom left exit but didnt want it to show. thanks for the link. not as expensive as i thought it would be.

 

[Buckru]

Josh

They have a spray, kind of like high heat stove paint, to prevent any problems with rust. They also claim even without the paint it wont rust anymore than normal.

Buck

 

[e9999]

well, seems like this may well decrease the temp under the hood, but then that would also increase the temp of the exhaust system, cats etc.
Is the latter desirable longevity wise?
In doubt, I would go with what the R/D folks at Toy have decided to do...

 

[concretejungle]

Hey Buck, i was just thinking about this also. I wonder if you sprayed the headers with the paint and then put the wrap over that? THat should keep them from rusting, no?

 

[Buckru]

I agree that should prevent any rust problems outside of the normal occurence.

e9999 I am not sure what you mean by "what Toyota R&D " has already done? Are saying leave it alone?

As far as the longevity of the exhaust goes, a cooler running engine is an engine with less wear and greater longevity. I guess that may be which one, the cats or engine, do you want to be concerned with as far as longevity and performance.

I am still pretty new at this and I would be grateful to hear both pro's and cons.

Buck

 

[Kaderabek]

I have heard that if your engine area gets wet(or muddy) ....

Assuming you meant to say, "When your engine area gets wet or muddy...."

TJK

 

[Steve C]

I would just as soon skip this sort of thing.

On the exhaust, this insulation will definatley make the exhaust manafolds and pipes hotter which will cause increased corrosion from the inside out. It could also cause cracks, etc because the metal is closer to the melting point. As the metal gets hotter and hotter it undergoes changes in its structure that effect the strength. It will make the cats and o2 sensor run hotter.

on the intake, the air already comes in under the fender. There is maybe some chance in increasing the density of the intake air, but unless you are driving around with the gas pedal floored it won't really help.


If you had a turbocharger you would use this to keep the exhaust hot on the way from the engine to the turbocharger.

 

[elmariachi]

As far as the longevity of the exhaust goes, a cooler running engine is an engine with less wear and greater longevity. I guess that may be which one, the cats or engine, do you want to be concerned with as far as longevity and performance.

I am still pretty new at this and I would be grateful to hear both pro's and cons.

Buck

Cooler running vs. what? This engine is designed to operate in a certain temp range (180-190 degrees) for maximum performance. You may bleed off engine BAY temps a bit with these gimmicks (and that's probably arguable), but that won't have any bearing on oil or coolant temp. Its a waste IMO unless you are running headers.

Jim

 

[concretejungle]

I just don't see the logic in not doing something like this. Maybe i'm wrong, and i have been as pointed on this board before. Just seems like wrapping the headers would keep temps under the hood lower (not the engine itself), and that's what i'm talking about.

 

[Kaderabek]

Maybe if you just rap near the headers. Try the Gourds version of Gin & Juice.

TJK

 

[elmariachi]

I just don't see the logic in not doing something like this. Maybe i'm wrong, and i have been as pointed on this board before. Just seems like wrapping the headers would keep temps under the hood lower (not the engine itself), and that's what i'm talking about.

A wrapped header might reduce the temps in the engine bay and the steel can possibly dissipate the heat aft of the header. Wrapping a cast iron manifold is going to raise the manifold temp and the cast iron will eventually crack.

Jim

 

[Kalawang]

I'd expect any advantage from the wrapping to be in favor of deisel engines. Cooling the engine compartment should help those with intakes in the engine compartment get cooler air for more power. I doubt the improvement would be worth the cost and trouble and probably won't even be felt by the average owner. You would probably get better improvement by a snorkel.

I'm reluctant about the wraps. It's not all that bad an idea, but the wraps take up space that might make future repairs or service to that area more difficult. That's an already tight area and applying the tape well would be difficult. The lost space might affect serviceing that area.


Kalawang

 

[concretejungle]

Actually, i am thinking of doing this not really for horse power gains or anything like that. Just looking into the future and i see a blower or turbo in it. And with either of those i would certainly put a snorkle on to bring cooler air in. But, i was thinking cooler temps under the hood wouldn't hurt a thing.

On a side note, i actually thought about wrapping the header and then the first cat that the slider rail goes under. I figured if i wrapped the cat, it would cut out any vibration/resonnace/bflat noises.

 

[elmariachi]

Actually, i am thinking of doing this not really for horse power gains or anything like that. Just looking into the future and i see a blower or turbo in it. And with either of those i would certainly put a snorkle on to bring cooler air in. But, i was thinking cooler temps under the hood wouldn't hurt a thing.

On a side note, i actually thought about wrapping the header and then the first cat that the slider rail goes under. I figured if i wrapped the cat, it would cut out any vibration/resonnace/bflat noises.

Having owned a blower on an 80, there is NO way I would wrap the stock exhaust beneath the blower, the heat would be enormous and you are going to grenade lots of stuff. So a header would be a must. The snorkle will not bring cooler air into the area under the hood. All the air from the snorkle goes straight into the intake.


Jim

 

[Kaderabek]

Rushing out to remove tape from said blower....

TJK

 

[elmariachi]

Rushing out to remove tape from said blower....

TJK

FYI your snorkle is routed to the fresh air ducts.

 

[flintknapper]

For what its worth.

We stopped using a "wrap" that looks just like that, on the exhaust pipes of the generators of Class A coaches because the pipes were cracking at the welds and they were rusting through really fast.

The type we used was installed by first soaking the roll in water and then wrapping the pipe, and then finishing with metal ties. It does keep some heat from radiating away from the pipe, but it also gets loose and sagging after a while and then it just holds in water.

I don't recommend it (or at least not the one we tried).

 

[Kaderabek]

FYI your snorkle is routed to the fresh air ducts.

Good thing, I just had a big ass burrito!

TJK